Global Patent Index - EP 0590263 B1

EP 0590263 B1 2003-06-18 - Gas barrier resin composition and process for producing the same

Title (en)

Gas barrier resin composition and process for producing the same

Title (de)

Gasdichte Zusammensetzung und Verfahren selbige herzustellen

Title (fr)

Composition barrière à gaz et procédé pour sa production

Publication

EP 0590263 B1 (EN)

Application

EP 93112048 A

Priority

JP 20233992 A

Abstract (en)

[origin: EP0590263A2] A gas barrier resin composition or its film having very high level gas barrier and moisture barrier properties, which comprises a resin and an inorganic laminar compound having a particle size of 5 mu m and an aspect ratio of 50-5,000. Said resin composition or its film can be produced by dispersing an inorganic laminar compound in a resin or resin solution in the state that the inorganic laminar compound is swollen or cloven with a solvent, and removing the solvent from the dispersion, if necessary in the form of a film, while keeping said state.

IPC 1-7 (main, further and additional classification)

C08K 3/34; C09C 3/08

IPC 8 full level (invention and additional information)

B32B 27/28 (2006.01); C08J 3/205 (2006.01); C08L 101/02 (2006.01); B32B 27/18 (2006.01); C08K 3/00 (2006.01); C08K 3/34 (2006.01); C08K 7/00 (2006.01); C08L 29/04 (2006.01); C08L 101/00 (2006.01)

CPC (invention and additional information)

C08K 7/00 (2013.01); B32B 27/18 (2013.01); C08K 3/346 (2013.01); C08K 2201/008 (2013.01); C08K 2201/016 (2013.01)

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL

EPO simple patent family

EP 0590263 A2 19940406; EP 0590263 A3 19940525; EP 0590263 B1 20030618; AU 4200693 A 19940203; AU 662429 B2 19950831; CA 2101037 A1 19940130; CN 1082071 A 19940216; CN 1136254 C 20040128; CN 1139623 C 20040225; CN 1248587 A 20000329; CN 1248588 A 20000329; DE 69333048 D1 20030724; DE 69333048 T2 20040401; JP 2002201367 A 20020719; JP 2005068441 A 20050317; JP 3817274 B2 20060906; JP 4004279 B2 20071107; JP 4042740 B2 20080206; JP H0693133 A 19940405; KR 100312876 B1 20011015; TW 281683 B 19960721

INPADOC legal status


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2004-12-29 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: SUMITOMO CHEMICAL COMPANY, LIMITED

2004-05-12 [26] OPPOSITION FILED

- Opponent name: AB TETRA PAK

- Effective date: 20040317

2004-01-23 [ET] FR: TRANSLATION FILED

2003-12-31 [REG CH PL] PATENT CEASED

2003-12-01 [NLV1] NL: LAPSED OR ANNULLED DUE TO FAILURE TO FULFILL THE REQUIREMENTS OF ART. 29P AND 29M OF THE PATENTS ACT

2003-09-29 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2003-07-24 [REF] CORRESPONDS TO:

- Document: DE 69333048 P 20030724

2003-06-30 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): BE CH DE ES FR GB IT LI NL

2003-06-18 [REG GB FG4D] EUROPEAN PATENT GRANTED

2003-06-18 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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1996-04-17 [17Q] FIRST EXAMINATION REPORT

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1994-11-23 [17P] REQUEST FOR EXAMINATION FILED

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